<template>
<div>
  <LoginHeader>联合登录</LoginHeader>
  <section class="container" v-if="isBind">
    <div class="unbind">
      <div class="loading"></div>
    </div>
  </section>
  <section v-else class="container">
    <nav class="tab">
      <a @click="hasAccount=true" :class="{active:hasAccount}" href="javascript:;">
        <i class="iconfont icon-bind" />
        <span>已有小兔鲜账号，请绑定手机</span>
      </a>
      <a @click="hasAccount=false" :class="{active:!hasAccount}" href="javascript:;">
        <i class="iconfont icon-edit" />
        <span>没有小兔鲜账号，请完善资料</span>
      </a>
    </nav>
    <div class="tab-content" v-if="hasAccount">
      <keep-alive>
        <CallbackBind :unionId="unionId" />
      </keep-alive>
    </div>
    <div class="tab-content" v-else>
      <keep-alive>
        <CallbackPatch />
      </keep-alive>
    </div>
  </section>
  <LoginFooter />
</div>
</template>

<script>
import { ref } from 'vue'
import LoginHeader from './components/login-header'
import LoginFooter from './components/login-footer'
import CallbackBind from './components/callback-bind'
import CallbackPatch from './components/callback-patch'
import { useStore } from 'vuex'
import { useRoute, useRouter } from 'vue-router'
import QC from 'qc'
import { userQQLogin } from '@/api/user'
import { ElMessage } from 'element-plus'
export default {
  name: 'PageCallback',
  components: { LoginHeader, LoginFooter, CallbackBind, CallbackPatch },
  setup () {
    const hasAccount = ref(true)
    const nickname = ref(null)
    const avatar = ref(null)
    // 假设已经绑定，默认会去做一次登录，如果登录失败证明未绑定
    const isBind = ref (true)
    // 存储回调地址，提供将来QQ回调页使用  setup中
    const store = useStore()
    const route = useRoute()
    const router = useRouter()
    store.commit('user/setRedirectUrl', route.query.redirectUrl)

    // 1. 获取QQ互联的openId也就是后台需要的unionId
    // 2. 根据QQ互联的openId去进行登录，准备一个接口
    const unionId = ref(null)  // 储存openId，传递给子组件
    if (QC.Login.check()) {
      // 检查qq是否登录
      QC.Login.getMe( openId => {
        userQQLogin(openId).then(res => {
          // 代表：使用qq登录成功
          // 1. 存储用户信息
          unionId.value = openId
          const { id, account, avatar, mobile, nickname, token } = res.result
          store.commit('user/setUser', { id, account, avatar, mobile, nickname, token })
          // 2. 跳转到来源页或者首页
          router.push(store.state.user.redirectUrl || '/')
          // 3. 成功提示
          ElMessage.success('QQ登录成功')
        }).catch(err => {
          // 代表：使用qq登录失败===>1. 没绑定小兔鲜帐号  2. 没有小兔鲜帐号
          console.log(err)
          isBind.value = false
        })
      })
    }
    return { 
      hasAccount,
      nickname,
      avatar,
      isBind,
      unionId
    }
  }
}
</script>

<style scoped lang='less'>
.container {
  padding: 25px 0;
  position: relative;
  height: 730px;  
  .unbind {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    padding: 25px 0;
    z-index: 99;
    .loading {
      height: 100%;
      background: #fff url(../../assets/images/load.88daf935.gif) no-repeat center / 100px 100px;
    }
  }
}
.tab {
  background: #fff;
  height: 80px;
  padding-top: 40px;
  font-size: 18px;
  text-align: center;
  a {
    color: #666;
    display: inline-block;
    width: 350px;
    line-height: 40px;
    border-bottom: 2px solid #e4e4e4;
    i {
      font-size: 22px;
      vertical-align: middle;
    }
    span {
      vertical-align: middle;
      margin-left: 4px;
    }
    &.active {
      color: @xtxColor;
      border-color: @xtxColor;
    }
  }
}
.tab-content {
  min-height: 600px;
  background: #fff;
}
</style>